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Cornea and External Disease
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Diseases of the eyelids, ocular surface and cornea
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There were 24 articles found in this category:
 Pterygium and Pinguecula
A pterygium is a mass of fleshy tissue that grows over the cornea (the clear front window of the eye). It may remain small or may grow large enough to interfere with vision. A pterygium most commonly occurs on the inner corner of the eye, but it can appear on the outer corner as well. The ...
- Keratoconus
Keratoconus is an uncommon condition in which the dome-shaped cornea (the clear front window of the eye) becomes thin and develops a cone-like bulge. As the condition progresses, the shape of the cornea is altered, distorting your vision. Usually, keratoconus affects both eyes, although symp ...
- Lid Margin Disease
Lid margin disease is a common and frequently chronic inflammation of the eyelids. Symptoms include irritation, itching, and, occasionally, a red eye. This condition frequently occurs in people who tend to have oily skin, dandruff, or dry eyes. Bacteria normally reside on the skin, but in some ...
- Fuchs' Dystrophy
Fuchs’ dystrophy is a progressive disease that affects the cornea, the clear dome that covers the iris (the colored part of the eye) and helps focus light as it enters the eye. With this disease, cells in the cornea’s inner layer, called the endothelium, are reduced in number. This ...
- Penetrating and Lamellar Keratoplasty
If your cornea is severely damaged or diseased, you might require a corneal transplant to improve your vision. One type of corneal transplant, called a penetrating keratoplasty (PKP), replaces your central corneal tissue with donor tissue. (See photo below.) The procedure usually takes about a ...
- Conjunctivitis
“Pink eye,” the common name for conjunctivitis, is an inflammation or infection of the conjunctiva. The conjunctiva is the outer, normally clear covering of the sclera (the white part of the eye). The eye appears pink when you have conjunctivitis because the blood vessels of the conj ...
- Dry Eye
Your eyes constantly produce tears at a slow and steady rate so that they stay moist and comfortable. Some people are not able to produce enough tears or the appropriate quality of tears to keep their eyes healthy or comfortable. This condition is known as dry eye. Symptoms of dry eye include sc ...
- Allergies and the Eyes
Approximately 22 million people in the United States suffer from seasonal itchy, swollen, red eyes. Airborne allergens, such as house dust, animal dander, and mold, constantly bombard the eyes and can cause ocular allergies at any time. But when spring rolls around and the plant pollen starts f ...
- How to Instill Eyedrops
Infections, inflammation, glaucoma, and many other eye disorders often are treated with medicated eyedrops. It is important to remember that all medicines can have side effects. Surprisingly, even the small amount of medication in an eyedrop can create significant side effects in other parts o ...
- Recurrent Corneal Erosion
The cornea is the clear front window of the eye. It covers the iris (the colored portion of the eye) and the round pupil. The cornea is composed of five layers. The outermost layer is the epithelium. When the epithelium does not adhere correctly to the corneal tissue below, this can cause a co ...
- Herpes Keratitis
Herpes keratitis is a viral infection of the eye caused by the herpes simplex virus, best known for causing cold sores. Herpes keratitis usually affects only one eye and most often occurs on the cornea—the normally clear dome that covers the front part of the eye. The symptoms of herpes ...
- Fungal Keratitis
Fungal keratitis is a serious infection of the cornea—the clear, round dome covering the eye’s iris and pupil. Symptoms of fungal keratitis include: sudden blurry vision; unusual redness of the eye; pain in the eye; excessive tearing or discharge from your eye; and increased li ...
- Corneal ulcers
Corneal ulcers, or keratitis, can form due to trauma to the cornea, eyelid disease, severe dry eye, fungus, herpes simplex viral infections, and other causes. There are two very common types of corneal ulcers. Bacterial ulcers tend to be the most painful type of corneal ulcer, and in some ca ...
- Corneal Topography
Corneal topography is a computer-assisted procedure used to measure the curvature of the cornea, the clear front window of the eye. The corneal topographer projects illuminated circles on the cornea that are reflected back to the computer and used to produce a map of the cornea. This map can re ...
- Corneal Abrasion and Corneal Erosion
Corneal Abrasion The cornea is the clear front window of the eye. It covers the iris (the colored portion of the eye) and the round pupil. The cornea is composed of five layers. The outermost layer is called the epithelium. Injuries to the epithelium, such as scratches, cuts, or scrapes, are k ...
- Cirugía Refractiva
La cirugía refractiva ayuda a reducir la dependencia de anteojos o lentes de contacto, cambiando de manera permanente la forma de la córnea (la capa transparente en frente del ojo). Cuando se trata la miopía, las técnicas de la cirugía refractiva reducen la cu ...
- Pterigión y Pinguécula
El pterigión es un tejido carnoso que crece sobre la córnea (la capa transparente localizada al frente del ojo.) Puede permanecer pequeño, o crecer lo suficiente como para interferir con la visión. El pterigión ocurre comúnmente sobre la esquina interna ...
- Enfermedad de la Margen del Párpado
La enfermedad de la margen del párpado es una inflamación común frecuentemente crónica de los párpados. Sus síntomas incluyen irritación, rasquiña, y ocasionalmente ojos rojos. Esta condición ocurre frecuentemente en las personas co ...
- LASIK por medio de Láser Femtosegundo
Hasta hace poco tiempo, si usted era uno de los millones de pacientes con errores refractivos, anteojos o lentes de contacto eran las únicas opciones para corregir la visión. Con el arrivo de la cirugía refractiva, algunos pacientes con miopía, hipermetropía o ...
- LASIK por medio de Láser Microkeratoma
Hasta hace poco tiempo, si usted era uno de los millones de pacientes con errores refractivos, anteojos o lentes de contacto eran las únicas opciones para corregir la visión. Con el arrivo de la cirugía refractiva, algunos pacientes con miopía, hipermetropía o ...
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